Improvement in portable pumps



lF. s. SHIRLEY.

PORTABLE-PUMP.

Painted Feb. 8,1876.

, La @le 73207,-

N,PEIERS, PHOT0-L|THOGRAFHEH. wASHlNGTQN, DA C,

FREDERICK s. SHIRLEY, or. NEW BEDFORD,MASSACHUSETTS, AssieNoR TO JOSIAH 'WHITMAN OF CRANSTON, RHODE ISLAND.

IMPROVEMENT an PQRTABLE PUMPS,

Specitioation forming part of Letters Patent No. 173,349, dated February 8, 1876; application filed July 24, 1875.

To all whom it may concern:

Be it known that I, FREDERICK S. SHIR- LEY, of New Bedford, county of Bristol and State of Massachusetts, have invented an Improved Portable Pump, of whichthe following is a specification, reference being had to the accompanying drawings forming'l part hereof.

My invention consists in a portable pump, constructed with the hollow handle, hollow plunger, and eduction-pipe formed in. one piece, and the pump-barrel, and a stufing-box situated at the upper end of the said barrel, formed in one piece also, the two pieces being adapted to slide, the former within the latter, and when thus arranged to operate as a pump, throwing a continuous stream, whereby a very compact and readily portable pump is constituted, and whereby the construction thereof is greatly simplified and cheapened,

Figure l is a longitudnal central sectional view ofva portable` pump embodying my invention.

Y `A is the hollow handle, 'B is the hollowr plunger, and C is the eduction-pipe. These sev- .eral parts I cast in one .piece of metal, as shown.` rlhe said delivery-pipe is located centrally within the handle and plunger, and extends from the upper end ot the handle down through and nearly to the lower end of the plunger, thus forming the space or airchamber a around said pipe G, continuous 4through the hollow handle and plunger. G is the pump-barrel, which is cylindrical in shape, and has cast with it in the same piece, upon the upper end of the barrel, the packing-box D. The piece forming and composed of the hollow plunger with the hollow handle A containing the edu'ction-pipe is then adjusted in the barrel, the plunger B passing through the stuffing or packing box D, which is packed at g, as shown, and the gland H having been adjusted in place, it is'screwed vdown into the box D, as shown, when the two essential pieces of the pump, containing the devices most necessary to its action, will be properly inadjustment. The plunger has a strainer, c, at its lower end, and has the opening d, with the in wardly-openin g valve e at its lower extremity'. E is t-he nozzle-piece, screwed upon the upper end of the hollow handle, and into which the eduction-pipe opens. F is a valve-chamber, with valvef screwed upon the lower end ot' the barrel G, and to which flexible hose, which supplies the. water to the pump, is connected.

Now it is evident that, in a portable pump embodying my invention, the'water drawn in on the first -upstroke will till the pump-body, and the irst downstroke will force the water therefrom into and through the pipe C, and also into the chamber a, thus compressing the air therein into the upperpart ot' the handle. 'Upon the next and each succeeding upstroke the water in the chamber a will be forced by the expansion of this compressed air out of Vsaid chamber a into and through the pipe G, thus causing, during the entire period of the operation of the pump, the delivery at the nozzle ot' a constant and continuous stream.

rIhe plunger B may be desirably packed at its lower end at b, as shown, vso that when the plunger is drawn up in the barrel 'the air above the said packing will be compressed, and will act on the downstroke to assist in expelling the water in the hollow plunger by its expansion, and thus decrease the force necessary to be applied by the operator. The air compressed behind the said packing b will operate continuously as a cushion, and will,

by its pressure against the said packing, ai

the downstroke ofthe plunger.

I do not intend to claim, broadly herein, a

pump having a hollow plunger, nor one having an eduction-pipe within a hollow plunger,`

communicating with a hollow handle or nozzle piece, nor a pump adapted to be fed by a iexible tube or hose, as I am aware that these devices are not new. I intend to limit my claim hereunder to a pump in which the hollow handle and hollow plunger are` arranged to open into each other, and are continuous one ot' another in a right line, and together with the eduction-pipe (l, located within them and forming the chamber a extending into the handle, are cast inone piece of met-al, Vand the pump-barrel has cast with it, located on its.

upper extremity, the stuffing-box D, in one piece also, these two piecesbeing arranged to he adjusted together, and united for operation as a portable hand-pump, capable ot' throwing` a, continuous stream, and whereby the construction ofthe pump is very greatly simplitied and cheapened.

What I claim as my invention, and desire l to secure by Letters Patent, is-

A portable hand-pump, in which the hollow handle A, hollow plunger B, and central eduction-pipe C, forming the chamber a, are cast in one piece, and the pump-barrel G has also cast in one piece with it, and on the upper end thereof, the stulng-box D, together with the gland H, als described, and for the pur pose specified.

FREDERICK S'. SHIRLEY. 

